Sequence alignment between 4mlr(A) and UniProt seq Q9PPB4 (DAPA_CAMJE):

Q9PPB4 (DAPA_CAMJE): 4-hydroxy-tetrahydrodipicolinate synthase from Campylobacter jejuni subsp. jejuni serotype O:2 (strain ATCC 700819 / NCTC 11168)
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         ---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+--------
UniProt: MDKNIIIGAMTALITPFKNGKVDEQSYARLIKRQIENGIDAVVPVGTTGESATLTHEEHRTCIEIAVETCKGTKVKVLAGAGSNATHEAVGLAKFAKEHGADGILSVAPYYNKPTQQGLYEHYKAIAQSVDIPVLLYNVPGRTGCEISTDTIIKLFRDCENIYGVKEASGNIDKCVDLLAHEPRMMLISGEDAINYPILSNGGKGVISVTSNLLPDMISALTHFALDENYKEAKKINDELYNINKILFCESNPIPIKTAMYLAGLIESLEFRLPLCSPSKENFAKIEEVMKKYKIKGF
         .............................................................................................................X.......................................................X....................................................................................................................................
PDB seq: --KNIIIGAMTALITPFKNGKVDEQSYARLIKRQIENGIDAVVPVGTTGESATLTHEEHRTCIEIAVETCKGTKVKVLAGAGSNATHEAVGLAKFAKEHGADGILSVAPFYNKPTQQGLYEHYKAIAQSVDIPVLLYNVPGRTGCEISTDTIIKLFRDCENIYGVXEASGNIDKCVDLLAHEPRMMLISGEDAINYPILSNGGKGVISVTSNLLPDMISALTHFALDENYKEAKKINDELYNINKILFCESNPIPIKTAMYLAGLIESLEFRLPLCSPSKENFAKIEEVMKKYKIKGF
           -------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+--------
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